A startup called Helix is betting that voice technology can replace traditional methods like CAPTCHA and photo verifications to prove that a user is human on the internet, all without requiring sensitive personal information. The company announced it has raised $6.2 million in a funding round led by Chicago Ventures. The round also featured participation from BAM Ventures, Aglaé Ventures, Corazon Capital, Press On Ventures, Tusk Ventures, Yonder Ventures, Rule 30, and Brown Angel Group. Notably, Siri co-founder Dag Kittlaus has backed the venture and will serve as an adviser.
Helix was founded in 2025 by Alex Oberg, Anna Dorofiyenko, and Mike Hall. Oberg previously worked at Ticketmaster, where he helped create Verified Fan to keep bots off the platform, and his past startup was acquired by Ticketmaster. Dorofiyenko led data science teams at Live Nation and Zillow, while Hall has worked at Nike and Tinder, contributing to the development of Tinder's initial matching algorithm. As artificial intelligence advances and creates challenges in distinguishing between humans and bots on the web, the founders designed Helix to leverage biometric signals like voice.
Key takeaways
- Helix secured $6.2 million in a funding round led by Chicago Ventures.
- Siri co-founder Dag Kittlaus backed the startup and joined as an adviser.
- The company was founded in 2025 by Alex Oberg, Anna Dorofiyenko, and Mike Hall.
- The voice technology can run locally even on an iPhone 13 with minimal costs.
How Helix voice ID works and where it applies
The core technology behind Helix runs directly on a user's device, capable of operating locally even on an iPhone 13, which keeps deployment costs minimal. The model determines whether someone is human and estimates their age through a quick four-second voice challenge. The startup is also running pilots to explore whether voice can function as a biomarker to detect conditions like drunkenness or distress, though the founders emphasize that the technology cannot reliably detect if someone is lying.
Commercial applications are already underway. One of Helix's customers is Zeel, an in-home healthcare provider utilizing the voice tech to verify the identities of providers visiting customers' homes. Oberg noted that the startup is also exploring additional verification use cases, such as authenticating cabdrivers. Furthermore, Helix positions its solution as a privacy-friendly alternative to incoming global age-verification regulations on social media, allowing users to verify their status without trading their personal data for security.
Market outlook and limitations
With the rise of advanced AI agents, industry demand for robust online identity verification is shifting away from traditional proxies like email addresses, IP addresses, device IDs, and phone numbers. Kittlaus noted that voice-identification technology has finally reached a point where it operates reliably, giving Helix a strategic advantage as AI-powered fraud increases. He praised the company for focusing on understanding the meaning and state of a speaker's voice rather than merely teaching computers to understand speech.
Despite its capabilities, Helix is transparent about its current limitations. The startup's technology does not identify individual speakers while verifying that they are unique humans, and even if a voiceprint is stored, it cannot be used to reconstruct a person's voice. Additionally, Helix believes its current technology is not yet capable of reliably detecting AI agents during live phone calls, leaving room for ongoing development in combating live voice fraud.
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